Headlamp construction



s sheets-shed 1 illlll.

Dl 7 C. E. GODLEY HEADLAMP CONSTRUCTION Filed Oct. 5. 1925 i Dec. 7,1926. 1,610,125

c. E.'GoDLEY I A -I HEADLAMP CONSTRUCTION Filed' ot. 5. 192s s sheets-sheet a In vealar.'

Patented-19kg 7, 1192.671. i

' CHARLES E. domini, or` 'ntifino'in i/irciriciiiit,I AssiGNeRiBYfMEsN sssenivrniirsg.

, ToA c. HALL LAM? competir; A ,conroniiyrioiv' on Mreiirsiinl, Y

HEAQLAMP cousTnuCTi-oit yApplication filed October l My invention relates to lamp construe#v tionsand inV mostof its' features to the providingof a vlainpcas'ing.; having a' de tacliable portion which is adapted to be removed for affording access to; the'interior and having-oneof these parts detachable to afford'access tothe interior of the casing. Y

vMorepartic'ularly7 my invention providesr a: casing construction l'of this class which -pro-vides a joint constructionwhich will insure a tight closure between the stationary casing part and thedetachable casing.

portion, :and whichwill prevent arelative shiftingnl or spreading of 'these`parts, My

casing. f Still` further and falso V' more Yde tailed objects will appear from the following "drawings, in which Figfl is a side ele specification and.- from l ,the accompanying vation yheadlight having a Vcasing or body einbodyingniyjnn..v A

v v f` j aspects enlarged central, vertical and longitudinal section through lthe same laiiip.

rvention. v I'Fig. 2 is an Fig. 3 isf an enlargement the upper i-ighthandportio'nfof Fig -Fig. 4l is ian enlargeinent o tion of Fig. 2.` i f. V l

Fig. 5 is aperspective vview ofthe rock? ingly mounted latching member' which` nor# mally holds vthe detachablecasing Ipt irtioii in its'clo'sure position'. j

in its releasedfposition. Fig; 'l' is a Vtransverse vertical'section 'taken 'along the line Tfof Fig.

drawn on aV larger scale thanFig.

Fig. s is an @hinged .perspective view/1.0i

the thrust member whifchfis lmountedon-"a stationary V,casing portion and which resists thetliri'ist of the' reflectoifrholding sprinv.

Fig. e is a. fragmentary View 'Similar f6' aportion of'Fig.4 4 but showing the latchl 2 but.

Fig. 9 is a central and longitudinal l'sec-a vtion through the two. casing; alone"l I' showing-the fingers which interlock 'these parts against'relative sliding er spreading. [*`ig. `10 is l afplan,viewg'ofthe lower casi'iig=.part alone, before the f nefededAIA perform tions `are formed inlit.; r. f

11 is anenlargedY and fragmentary vertical section taken along the line T11- 11 takenfalong the line 124112 ofFig. 9.v

plicati ons, suitable', for use connection with .lamps having'ellipticalreflectors ,such as the headff l Fig. l2 Vis an 'enlafrgedY vertical section i lamp, shown; inniy'cgpending application Nojflifiled November '21,1924 'Ona` 'headlight construction. .I-n" this lampylthe r` ector is ovoifd and'lcoinposed "oftwoinetah forward part"beingl Istationary 'and the rear part being pressed byjaspifing into its17A norn'i'al position, Aaccess'being afforded tio thev interior of 'the rlefiector` and to tlieflainp. bulb Ywithin the'reflector by separating tlif rear y iefector portion v'from tliefforwardlor stationary 'reflector portion.

@To permit access tothe rear ref iecto'ripoi.-

tion for thispurpose, 'and also .to ther socket focusing means employed in Z'Connection. withl lbf `t bedr i).,rticularlysvitedwth also provides othery features whi'cljare fadvantageoi'is iii-lamp constructions employing Split Qisings,`- n Y {Refer'ri r first. 1,- tliis showsl the;- efxterior Of the lamp as; including. y upper andfy lowergfs'emi-ovoida-l casing or.' body my invention pro-vides f casing; or 1S purpose and isiinportantthat a suit` T lii's fgu'realso Vshows the headl'of-the latch releasing screw 20 and fone of "tliefrivets 6. which Secure. a springethri'ist receiving inemrdfv end ,and .adj oined'to ai frontlens ring .Y 3 ,W chcarres' the glass lens 4 of the lamp;

bei" vto' the lower oi" stationaryhalfjof provide vthe upper partl with can if rdly eX-teiilingfledge 8' which desirably is dis- 1 a rigid casing.

rear end `portion in Fig. Q3.

that part. fi l I also provide at least one, 'and'desirablyY 'medialand longitudinal ot the lanip5 and provide the lower portion' aty its upper edge with an inwardly directed flange or lledge 9.up0n whichftheaforesaid,llange 8 seats. These'liangesq and. 9 Ydesirably extend around the rear end of the corresponding casing part and along the sidesoil each partI for the full length oiieach casing half, but

not across the front orl cut-off portion of both, of these flanges with fingers which hook over the edge ofthe lother flange, these lingers being preferably disposed YunsylrY metrically at opposite sides 'of the vertical medial plane ofthe casing so that the saniedie can be used for blanlring both parts ofV Thus Figi() shows thepartially:A completed lower casing part as having.

the casing.

live spaced riser fingers 10 extending upwardly ronithe inner edgeV of the flange SeV at each side/of the" center line. VWith the upperv casing part similarly blanled vand formed, thecorrespon'ding lingers l0 on the latter project vdownw'ardly between Ethe ngers-l() on the lower part, as shown in Figs. `9` and 1L u 'henthe parts are adj oi-ned.

Yvhen the casing 1s thus closed, the `riser`r fingers yil() prevent an inward movement of the flange 9 on the uppercasing hallc andan outward movement of theflange 8 Aon the lowerV casing hal' while the depending fingers lO-i prevent y movements of these flanges in tliefopposite directions. AHence this simple finger 'arrangement prevents each casing part from being flattened by vertical pressure on it', thereby insuring the desired rigidity evenwhen these parts are made of Aratherithin metal. The lingers 10 and lO'lilrewise prevent each casing" part fromsliding onthe other, transversely of ther lamp,V thereby cooperating with the hereafter described 'interit'ting of vtheforward casing end with the lens ring, and

l with the latter described interlatchingfothe rearends or', the casing parts, in aording A.llt its front, the lower casing. part 21 is formed to afford a substantially vertical annular flangeilliadapted to be secured.` by a pair of screws 12V-to thelens ring 3 so as toA lioldlthis Vlens ring stationary withre portiV olil'he lrmcr casing part andthe telescopic inte litting oi2 the lens ring with the front of the upper casing part yholds the forward portion ofthe latter in itsV n ormalposi-tion.

,insecure the rear portion oilVv the upper casino' part also itsinormal position7 l proe means releasable from outside the casfor latching the rear ends of the two parts to each other. vForthat purpose l ani here showing al latch pivoted at i upper vend KV16 to the upper casing part ng its lower end l? normally undere t. ha

the flange '9 von the lower casing part.

' As convenient means for pivotally securfV ing this latchi'ng member to the upper caslerovidea pivot plate 18 which bears against the said casing partk and which pressed against the latteiwby a spring 19 yinterposed between the lpivotf Both tlijeV plate and thel ,latching member. pivot plate `Yand the latching member are perforated' so lthat a screw 2Oy can extend freely through them into a nut 2l bearing against the forward lace 'of the 'latching member,Y and the' latching member has a side ledge 4l (Fig. which engages the nut'v 2l to keep, the latter from rotating.

.This screw desirab'ly has a fo-rwardlytaperhead rotatably soclreted in a correspond-r ing taperinga depression 22 in the uppercas- "halt7 the bore of the soclzeting portion ently greatto permit the screw to tilt with respectto the lamp body. rllhe upper end Lof lthe pivot. platev desirably is formed'into a hook 'which engages the recurved upper end 16 of the latching niember, while the lower end of the pivot plate seats on' the flange 8 o-' the upper ,casingv part so as to rotating.Y i 4 i i. 1

lll/lith the latch thus arranged, a tightening ofthe screw 20 will swingr the latching prevent theV pivot plate vfrom :member*rearwardly ,about its pivotal engageinent with the pivot plate V18, so as to force the lower end 17' ot Athe latcliinniem-y i ber against theinn'eredge kof the ilange 9,

thereby drawing' i theV upperVv casing part downwardly `and iforcino Vwthe vrear end ol: thisrcasing part into .i engagement with the lower casingpartl Then theV screw 20 is` relaxed, the. compression spring 19 the inner edge of the rear portion` Il v oi swings Vthe latching member forwardly. as"VV shown in 'Fig'. 5, thereby permitting the lower end of the latter to clear the flange 9 La v 7 so that the upper casing' part can be. raised at'its rear end Then the upper casing part 4can be drawn rearwardly until then offset i5.

attheY Jforward end 'of the uppercasing vpart casing part can be lifted oth clears thelens ring, after whiclrthis upper lVith vthe upper casing. `partk removed,V

access is afforded to' the focusing rdevice 23 as employed. in connection with the 'socket 24 forthe lamp bulb 25, this focusing device Y`being `here .shown4 in .the type :disclosedv inniyfzeopending application No. 250,810

' filed April V22, F1925. Access is `also lpro- 1 made vof castings.

videdto the reflector, so thatl the rear poi tion f2.6 Vof vthelatter can bedetachedfrom the `forward portion k27 which is secured to` the llens ring by screws 12T. v

here. shown vlheitwo reflector parts 4as also have telescopically interfittingflanges 'their adj aoent ends, and the rear reflector portion is.,ontinuously pressed lforward and into its said interfitting relation tothe forwardV reflector portion by a springfli), after. the general. manner vdisclosed' in Vmy saidcopend-ing application No. 751,255.'

V In this last mentioned application, l I

showed suc-h1 a spring as bearing" directly againstthe innerend of the casing, which is quite feasible when the ycasingor body is In employing'. sheet nietalfor partsof a similar lamp body, the metal which must be employed to permit a 1 sli-ape like `the, illustrated one to be formed from it must be so thin that Van adequate bearing of .Y the y-spring#*directly against the metal would :be'apt `'to' distort `the latter.

For lthis reason, I preferably 'interpose a thrustfre'ceiving member 'between the spring and the rear end portion of rthe lower or stationary casing" part 12. This member has f al main-rior; riser portion 30 'which desirably has itsu'pper. end formed witha recessl in which the rearwardly bowed Vrear endofthe spring,l seats,and`has a lfoot portion .32 secured to the. lower ycasing part by y,rivets G.' ,It also desirably Vhas a thrust finger 33v foi-ined from it .'andfextending rearwardly i vThe two casing parts landQ mayA ob` A j viously be made of various metals and suitl ably plated or otherwise finished, so that Vniy construction lends itselfto thefpro-A ducing of handsome Casings which also are relatively' inexpensive in manufacture f after the dies have been `made.` Howeven While lI have illust-rated and Adesoribed'my invention in an embodiment including .various highlydesirable details of vconstruction and arrangement,'I do notJv wish to `belliinited as tofthese, it beingv obvious that many-v changes might ibe made Without departing eitherfroin the spirit of myy invention or from ythe Vappended claims.

I claim as niy invention:- A f 1 l. A. v. lamp bodycomprising a pair of sheet l met-alparts adjoined *along` a medialV .plane longitudinal'of the lamp, land a lens- Vcarrying front secured to one of the .parts and slidably entered tflie ,forward ,end

poiftionlofgthe other partielle-et :the Saidsubsta ntiallyv in the said plane,on v whirl-i Y alige the other part 'DOImally Seats.. .aguda-iS adapted to slide dii-ring the attaching and detaching ofthe-'said other'pai't; :the said parts having spaced pluralities `of integralinterengaging portions cooperating with the said .entryt forward end., portion into `the' lens-carrying front for normally alfording the" sole meansV to prevent relative shifting of the said parts transversely of the lamp.,` Y l 2: lamp body Comprising sheet metal parts adjOiYlClralOn-ga substantiallyl VineClfal plane longitudinal-lof theV lam-ea-Chof the said partsfliavng an inwardly directed flange presenting affaoe in that plane v,and having spaced .fingers ex#V tending from therv .inner edge 'of the said langepasttlie inner edge of the. flange on the other. part, the flanges ,ont-he tivo Vparts resting-normally on each' other,v the lingers ,Ong the two `parts being in staggered rela tion vtoQeaoh ot-her; ink vcombinatioi'i with a `1,eI1,s1-ril,z' ttedover the forwardends. ofthe said' body parts, and. releasable means V.for

ksecuring theV vrear end sof the said"body parts toeach other. I

3. A lamp' casing comprising Va pai-r of body halves ,adjoi-ned. 'in a'planc ,substantiallyV liainetricfwofntlie casing, anda lens ring itting.. the tforward ends of both `body halves the said body halves having flanges extending inwardly ofthe leasing and 1101'- inallyl resting on each. other, and having interengaging portions spaced. fromt the ferwaid .ends yof the said halves for preventing relative'. lateral shiftinggof the f-s'aid rhalf;- andga latehingfme'mber movably 105l Y l 'mounted on one of the saidlialves land-nere madly engaging theflange; 'Q13 the/Other halt' 1 te fiele-mp the rear V`rends .of ,fgtlie1 said halves 5to-each other. y f

4. 5In a lamp, the combination with a pair of interfitting casing halves one of which has of means fasto-n'the other Vcasing half and releasably engaged with the first named cas- 4a forwardly directed flange at' its rear end,

.ing half for holding the two' halves adjoined.` l

at their forward ends, a latching memberk pivote'd tothe first named easing half with? 1 in andjat the rear end ,thereofv and normally engaging the said flange to; secure the casing halves to eachl other, 'a spring rcontinuously tending to rockV the latehing member out of threaded ineans operable from outside the casingfor moving the latching member into its said disposition against the resistance of the spring.`

5. lThe combination `with' a' pair ofl'a'djoined lamp casing parts of a pivoting member disposedjwithi-n oneof the said its4 said llange-engaging disposition, andV parts adjacent `to the Ajunctiflr'e of saidl parts,

' the pivoting member hai/ing an edge portion spaced from the casing'part-Within which it is disposed;"al latching member manually attachable to the pivotingmember-and having a portion Ihooked over the said edge portion to pivot the latching member onthe pivoting 1nember,-the latchmg member having a perforation; threaded means 'inter'- Y posedbet-Ween the last named veasing part Vand `the latching member for swinging the latching member into Va position in Which a portion ot the latter under-hangs a part of the other Ycasing part, thethreaded means includinggj` a member extending' through the Lea'id 'perforation and serving to 4hold the said portion of' the latching member hooked over the'said edge portion or' the pivoting member, and spring` means for urging the iatching member in theopposite direction.

G'. The combination With two adjoined lamp vcasing parts having relativelyfover- .lappingfand inwardly directed flanges at ytheir junctures,V of a pivoting member'disposed Within .and VVbearing flatwise againstv one vot" the parts and With one'edge` in engagement witlythe flange on that part; Va latching'member pivotally mounted on the pivotinginember and having a portion normally underhanging the flange on the other casingpart; spring meansv continuouslyV tending to swing the latching Vmember'about its pivotal mounting and` 'out of its said iange underhanging disposition, and threaded meansv interposed between the nrst named easing part and the latchmg mem- 1 ber and operable 'from the exterior or' the casing for moving the' latching Ymember in thejopposite direction; the threaded means andV the spring serving as the sole means for secuin'g the-pivoting member to the first namedcasingpart.' Y I 'l 7. The combination' Witha pair of adjoined lamp casing parts one of which has a perforation adjacenttothejuncture-oi the said parts, of a screw extending through the said perforation and: adapted to rock' about the casing part having the perforation,V a latching member pivotallyconnected at one-endV on the last named casing part and having its other end adapted tol engager' a portion ot the other casing'part so as to draw the two 'casing parts toward *each other, a nut rockingly engaging the inward face-otthe latching memberand threaded upon the' screw, and a spring loperatively y 'lWith an reflector, thehousin'g including` arvpair ofV lrwngitudinal plane of the 'reflector7 releasable means for securing the said parts to each other, a thrust-receiving member tast on onejotthe said parts, anda spring fast on therear end of the reiieetorgand, in releasable engagement with the thrust-receiving member-'and disposed 'for .forcing the reflector forwardly. Y Y

9; A lamp construction as per claim 8, in Which the thrust-receiving member', is secured at one end to one of the housing parts and has its spring-engaging portion at its parts Vadjoined.substantially in a centraly other-fend,` and in Which'the said member has a brace extending Afroman intermediate portion of Vthe said member into engagev ment Withfthe last named housingpart.`

Signedat Detroit,y Michigan, SeptemberV 24,1925. y V Y 1 CHARLESn.GODIJEY. 

